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LC86E5420 Scheda tecnica(PDF) 4 Page - Sanyo Semicon Device |
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LC86E5420 Scheda tecnica(HTML) 4 Page - Sanyo Semicon Device |
4 / 21 page LC86E5420 No.6805-4/21 (3) How to use the data security function "Data security" is the disabled function to read the data of the EPROM. The following is the process in order to execute data security. 1. Set 'ON' the jumper of attachment. 2. Program again. Then the EPROM programmer displays the error. The error means normally activity of the data security. It is not a trouble of the EPROM programmer or the LSI. Notes • Data security is not executed when the data of all address have 'FFH' at the sequence 2 above. • The programming by sequential operation "BLANK →PROGRAM→VERIFY" cannot be executed data security at the sequence 2 above. • Set 'OFF' to the jumper after executing the data security. (4) How to eliminate The programming data can be erased by using the EPROM eraser. (5) Shielding The UVEPROM (ultraviolet erasable and programmable ROM) is in it. Put the seal on the window in use. Data security Data security Not data security Not data security W86EP5420D W86EP5420Q |
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